#! /bin/sh

# To use this script, you must create a shairport user in the audio group:
#   sudo useradd -g audio shairport


### BEGIN INIT INFO
# Provides:          shairport
# Required-Start:    $remote_fs $networking
# Required-Stop:     $remote_fs $networking
# Should-Start:      pulseaudio alsa-utils hostname avahi
# Should-Stop:       pulseaudio alsa-utils hostname avahi
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
### END INIT INFO

# Do not modify this file. Edit /etc/default/shairport instead !

PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="Shairport Airtunes emulator"
NAME=shairport
DAEMON=/usr/local/bin/shairport

# Configuration defaults
USER=shairport
GROUP=audio
LOGFILE=/var/log/$NAME.log
ERRFILE=/var/log/$NAME.err
PIDFILE=/var/run/$NAME.pid
AP_NAME=$(hostname)
NICE=0

test -f /etc/default/shairport && . /etc/default/shairport

DAEMON_ARGS="--daemon --pidfile $PIDFILE --log $LOGFILE"

[ -z "$ERRFILE" ]     || DAEMON_ARGS="$DAEMON_ARGS --error $ERRFILE"
[ -z "$AP_NAME" ]     || DAEMON_ARGS="$DAEMON_ARGS --name $AP_NAME"
[ -z "$BUFFER_FILL" ] || DAEMON_ARGS="$DAEMON_ARGS -b $BUFFER_FILL"
[ -z "$RUN_ONSTART" ]    || DAEMON_ARGS="$DAEMON_ARGS --on-start \"$RUN_ONSTART\""
[ -z "$RUN_ONSTOP" ]     || DAEMON_ARGS="$DAEMON_ARGS --on-stop \"$RUN_ONSTOP\""
[ -z "$OUTPUT" ]      || DAEMON_ARGS="$DAEMON_ARGS --output $OUTPUT"
[ -z "$MDNS" ]        || DAEMON_ARGS="$DAEMON_ARGS --mdns $MDNS"
[ -z "$OUTPUT_OPTS" ] || DAEMON_ARGS="$DAEMON_ARGS -- $OUTPUT_OPTS"

# Exit if the package is not installed
[ -x "$DAEMON" ] || { echo "$NAME is not installed" >&2 ; exit 1; }
id -u "$USER" >/dev/null 2>&1 || { echo "User $USER does not exist" >&2; exit 1; }

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
# and status_of_proc is working.
. /lib/lsb/init-functions

do_start()
{
    # Let the daemon write to the pid/log/error files
    touch $PIDFILE $LOGFILE $ERRFILE
    chown root:$GROUP $PIDFILE $LOGFILE $ERRFILE
    chmod 660 $PIDFILE $LOGFILE $ERRFILE

    start-stop-daemon --start --quiet \
        --pidfile $PIDFILE \
        --exec $DAEMON \
        --chuid $USER:$GROUP \
        --nicelevel $NICE \
        -- $DAEMON_ARGS
}

do_stop()
{
    start-stop-daemon --stop --quiet \
        --pidfile $PIDFILE \
        --exec $DAEMON \
        --name $NAME \
        --retry=TERM/10/KILL/5
}

do_reload()
{
    [ -f $PIDFILE ] && kill -HUP $(cat $PIDFILE) || return 1
}

case "$1" in
  start)
	log_daemon_msg "Starting $DESC" "$NAME"
	do_start
        log_end_msg $?
	;;
  stop)
	log_daemon_msg "Stopping $DESC" "$NAME"
	do_stop
        log_end_msg $?
	;;
  reload)
        log_daemon_msg "Reloading $DESC" "$NAME"
        do_reload
        log_end_msg $?
        ;;
  status)
	status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
	;;
  restart|force-reload)
	log_daemon_msg "Restarting $DESC" "$NAME"
	do_stop
	case "$?" in
	  0|1)
		do_start
		case "$?" in
			0) log_end_msg 0 ;;
			1) log_end_msg 1 ;; # Old process is still running
			*) log_end_msg 1 ;; # Failed to start
		esac
		;;
	  *)
		# Failed to stop
		log_end_msg 1
		;;
	esac
	;;
  *)
	echo "Usage: $0 {start|stop|status|restart|force-reload}" >&2
	exit 3
	;;
esac

:
